Static or dynamic predictors of physical activity (PA)? A tracking study based on 12- and 38-month follow-ups in older adults

Highlights • Both static and dynamic (changes) physical functions predict physical activity (PA) levels and volumes. • Dynamic physical function rather than static physical function better predicts the trajectories of physical activity. • Only the dynamic physical function predicted PA trajectories that change overtime (both from an inactive behavior to an active one and from an active behavior to an inactive one).